Dualgloss 20 / 60° or Trigloss 20 / 60 / 85° Version GLOSSMETER
DOI Meter -
Haze Meter -
Goniophotometer
The Rhopoint IQ quantifies surface quality problems that are invisible to a standard glossmeter. The NEW IQ can measure all aspects of Reflective appearance quality.
Many industries measure reflective qualities with a simple gloss meter; however, gloss measurement is not enough to completely assess reflective qualities. It is very common for orange peel and haze effects to dramatically reduce the perceived quality of a finish without affecting gloss values.
Gloss
Surface texture can reduce appearance quality without affecting gloss. These two test panels have identical readings when measured with a standard glossmeter.
Gloss is a simple measure of how reflective a surface is. The Rhopoint IQ is available in two models, the IQ 20/60 (for mid-high gloss-mirrored surfaces) or the IQ 20/60/85 (for matt-mid-high-mirrored surfaces).
Haze
High quality gloss surfaces have a clear, deep, brilliant finish.
Common formulation, application and curing problems cause coatings to have a hazy finish.
Haze causes a drop in reflected contrast and causes halos to appear around light sources and these unwanted effects dramatically reduce visual quality.
Two surfaces showing high gloss & high gloss + Haze.
Identical 60° gloss values are measured
on both.
Quantifying haze is simple with the Rhopoint IQ. Log Haze units, according
to ASTM E 410, are measured simultaneously with gloss and DOI, the lower the value the less hazy the surface.
DOI (Distinctness of Image)
Distinctness of image (DOI) measures the effect of surface textures such as orange peel on a reflected image.
Reflections seen in a totally smooth high gloss surface are completely sharp and distinct (DOI = 100). As surface textures such as orange peel increase the image becomes fuzzy and DOI values decrease.
Three panels showing the effect of orange peel on a test chart reflected test chart. DOI values of
30.5,
74.5 and 99.5 were measured. Identical 60° gloss values are measured on all three panels.
Goniophotometric Profile
The IQ displays surface reflectance profiles 17-23°. The shape of the curve describes how the light has interacted with the surface. Sharp curves close to the specular direction indicate smooth highly reflective surfaces.
An on screen goniophotometric profile shows the distribution of the reflected light.
On screen graphs highlight trends in the measured batch.
Different textures and distortions produce identifiably shaped profiles depending on their size and frequency. Full goniophotometric information can be downloaded to PC for further analysis and comparison without the need for interface software.
RSPEC
The peak gloss value over a very narrow angle.
Usage - RSPEC is very sensitive to small changes in texture and is used to identify subtle differences in surface smoothness.
Proven Applications
Paints and coatings manufacturers and applicators, wood coatings, automotive industry, plastics and additives manufacturers, inks and printing, metal polishers, coil coaters, yacht manufacturers and powder coaters are among the many industries that are currently assessing surface quality using Rhopoint IQ technology.
Advanced Features - for FAST easy measurement
Full color easy to read screen
Onboard Statistics and Graphs
USB results download to PC without the need to install software
Results batching with user definable names
Bluetooth compatible
Pocket sized instrument with integrated tile holder
Single button press to measure all parameters
Fast measurement, <2 secs.
Fast and simultaneous measurement of all parameters
Fully automatic calibration with tile detection and verification
USB or mains rechargeable in 4.5 or 2.5 hours
17 hrs+ continuous operation or 20,000+ readings
Onboard memory for 999+ readings with full goniphotometric profiles
Bluetooth serial output of measured values.
Technical Data
Gloss Measurement Specifications (20/60° or 20/60/85° Versions Available)
20°
Improved accuracy and resolution on high-gloss & metallic samples (>70GU when
measured at 60°)
60°
Universal angle - all gloss levels
85°
Improved Resolution for Matt Finishes (<10GU when measured at 60°)
Resolution 0.1 GU • Repeatability 0.2 GU • Reproducibility 0.5 GU
Standards: ISO 2813; ASTM D 523, D 2457; DIN 67530, JIS 8741
• Conforms 60° & 85°
• Verified Performance 20°
RSPEC
Peak Specular Reflectance - 20° ± 0.09375°
Gloss Calibration Standard
Traceability:
ISO 17025 Certified Laboratory UKAS Laboratory Number 0693, BAM Traceable
Uncertainty:
0.1 GU
Haze Measurement Specification
Near Specular Reflectance measured at 18-19°, 21-22°
Switchable between Haze Units (HU) and Log Haze Units (LogHU)
Resolution 0.1 HU • Repeatability 0.2 HU • Reproducibility 0.5 HU
STANDARDS: ASTM E 430; ISO 13803
Prices subject to change Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only Export orders require quotations - click here for a quote For more info call us 1-800-762-2478 or 954-946-9454.
Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only 